In the 500th year of playing the role of the water god and bearing the secret alone, Funina cried quietly in the middle of the night in Momang Palace. A voice calling itself the "Partner Sign-in System" suddenly broke into her mind and bound itself without waiting for her to refuse. From then on, she had a "partner" in her life who could transform, sign in, and accompany her. From a plate of exquisite macarons to a real eye of the water god; from an hour of incarnation to the constant warm companionship every day - the originally heavy and lonely life gradually became filled with desserts, chats, walks in the Fontainebleau and the sunshine outside the window of Momang Palace. This is a relaxing story about how companionship melts loneliness and how daily life heals the long hours.